EP1414597A1 - Dispositif et procede de changement automatique des cylindres de travail, des cylindres d'appui et des cylindres intermediaires d'un laminoir a feuillards equipe d'au moins une cage de laminoir - Google Patents

Dispositif et procede de changement automatique des cylindres de travail, des cylindres d'appui et des cylindres intermediaires d'un laminoir a feuillards equipe d'au moins une cage de laminoir

Info

Publication number
EP1414597A1
EP1414597A1 EP02754457A EP02754457A EP1414597A1 EP 1414597 A1 EP1414597 A1 EP 1414597A1 EP 02754457 A EP02754457 A EP 02754457A EP 02754457 A EP02754457 A EP 02754457A EP 1414597 A1 EP1414597 A1 EP 1414597A1
Authority
EP
European Patent Office
Prior art keywords
roll
stand
rolls
roller
work
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02754457A
Other languages
German (de)
English (en)
Other versions
EP1414597B1 (fr
Inventor
Reinhard Wittkopf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1414597A1 publication Critical patent/EP1414597A1/fr
Application granted granted Critical
Publication of EP1414597B1 publication Critical patent/EP1414597B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • B21B31/103—Manipulators or carriages therefor

Definitions

  • the invention relates to a device and a working method for the automatic change of the roll sets consisting of work rolls, support rolls and intermediate rolls of a single or multi-stand strip rolling mill, by means of at least one roll change carriage which can be displaced transversely to the roll stand into a change position aligned with the center of the roll stand and which is parallel to the guide rails running on the rollers can be pulled out and can be moved laterally into a set-up position, in which the exchange takes place for a new roller set, whereby to remove the support roller set, an extension cross-piece carrying the upper support roller is provided, which is supported on the lower support roller when the work and intermediate rollers are removed and can be pulled out of the roll stand together with the support roller set.
  • German published patent application DE 198 15029 describes a roll changing method for a roll stand of a multi-stand strip rolling mill, the roll stands of which have work rolls and backup rolls. After the rolling of a first metal strip has ended, the roll stand is stopped and the work rolls are removed. If the roll stand has intermediate rolls, the intermediate rolls are preferably removed and installed together with the work rolls.
  • the back-up rolls of this known strip rolling mill are changed with the aid of an extension cross-piece in the form of a slotted back-up roll changing chair, which is moved into the stand after removal of the work roll set. Most of the work is done manually.
  • the aim of the present invention is also to make the one previously carried out manually
  • Back-up roll change at least partially included in the automatic roll change sequence and, with a corresponding device, a method for automatically changing the work rolls, back-up rolls and intermediate rolls To create roll sets of a single or multi-stand belt rolling mill, with which the roll change times can be reduced and the safety when changing rolls can be increased.
  • an improved device of the type described at the outset is proposed, which is characterized in that the removal crossbar can be positioned on the roll change carriage provided for the work and intermediate roll change and is provided with wheels on which the removal crossbar on guide rails running parallel to the rolls is retractable from the roll changing carriage into the strip mill stand and can be pulled out of the strip mill stand together with the backup roll set.
  • roller change carriage with the extension crossbar of the backup roller set and the special design of the extension crossbar with its own wheels enables the integration of the backup roller change into the automatic process.
  • the provision of the removal crossbar on the roll changing carriage shortens the roll changing time and makes crane work unnecessary;
  • the wheels on the removal crossbar enable the extension crossbar to be moved in and out of and into the roll changing carriage or out of and into the strip mill stand.
  • the wheels of the extension crossbeam are mounted on both sides in their upper region and roll in the strip rolling stand on the intermediate roller rails of the upper intermediate roller that can be raised and lowered.
  • the removal crossbar can be moved from the change carriage on guide rails of the same height directly to the intermediate roller rails that can be raised and lowered in the upper position, from where they can be placed on the lower support roller or its chock by lowering the intermediate roller rails.
  • the support roller set can then be moved out of the strip rolling mill manually or automatically, with the wheels of the removal crossbar being free and being extended on the guide rails below the chocks of the lower support roller.
  • the extension cross-piece is provided with a roll neck which can be coupled to the pull-out device of the roll change carriage.
  • the removal crossbar can be positioned laterally next to the work and intermediate roll set on the roll changing carriage and can be moved by moving the roll changing carriage into a position in relation to the strip rolling stand in which the guide rails of the roll changing carriage with the raised intermediate roll rails in Aligning the rolling mill stand, this proposal also serves to shorten the roll change times.
  • the removal cross-arm no longer needs to be laboriously threaded into the strip mill stand with the aid of a crane, it hangs ready in the roller change carriage and only needs to be moved by moving the roller change carriage to the position in which the guide rails on which the wheels of the removal cross-member roll, aligned with the intermediate roller rails.
  • the working method of the invention can be carried out, which consists of the sequence of the following working steps:
  • the roll stand is opened hydraulically by opening the roll gap.
  • the roll changing carriage is moved to the center of the stand on rails running alongside the strip rolling mill parallel to the rolling direction, so that the work and intermediate rolls can be coupled to the pull-out device and pulled into the roll changing carriage.
  • the roll change carriage is then moved transversely together with the work and intermediate rolls, and at the same time the removal cross member provided on the side of the work and intermediate rolls on the roll change carriage is moved into the center of the stand by transverse displacement of the roll change carriage, so that guide rails and intermediate roll rails are aligned.
  • the removal traverse is moved out of the roll changing carriage on its wheels and, guided on the intermediate roll rails, inserted into the strip mill stand.
  • the intermediate roller rails are lowered, whereby the removal crossbar is placed on the lower support roller or its chock.
  • the upper backup roller can be placed on the extension crossbar by lowering the intermediate roller rails.
  • the upper backup roller of the roller set and the intermediate roller rails are raised again, the intermediate roller rails reaching under the wheels of the removal crossbar and lifting them off the lower backup roller.
  • the roller change carriage now moves into position and pulls the removal crossbar out on the intermediate roller rails onto the guide rails of the roller change carriage.
  • the new work and intermediate roll set is moved into the center of the stand and pushed into the stand by subsequently moving the roll changing carriage. After closing the roll gap, the work, intermediate and backup roll change is finished.
  • Fig. 1 is a side view of a six-roll strip mill at
  • Fig. 3 shows a section through the strip mill stand when changing the backup roller with the top backup roller placed on the extension crossbar and
  • FIG. 1 shows a side view of a well-known, well-known six-roll strip mill stand 1 in which the set of rolls consisting of work and backup rolls has already been removed.
  • the roller set was pulled out of the strip mill stand 1 in a known manner with the aid of the roller change carriage 2 and was moved transversely on the roller change carriage 2, i.e. perpendicular to the plane of the drawing.
  • the support cross-beam designated 3 is used to change the support roller. As shown in FIG. 1, this expansion crossbeam 3 is positioned laterally next to the set of rolls consisting of work and intermediate rolls on the roll changing carriage 2 and was moved into a position in the middle of the strip rolling stand 1 by moving the roll changing carriage 2. The set of rolls consisting of work rolls and intermediate rolls is not visible in FIG. 1, it is covered by the expansion crossbeam 3 in the foreground.
  • the roll changing carriage 2 with the expansion crossbar 3 is ready for use in front of the strip rolling stand 1, the provided crossbar 3 hangs on wheels 4 Guide rails 5 of the roll change carriage 2.
  • the expansion crossbar 3 is C-shaped so that it enables the extension crossbar 3 to be extended and retracted even when the strip is in the strip mill stand 1.
  • the wheels 4 are arranged with which the expansion crossmember 3 in the
  • the expansion cross member 3 is shown in the strip mill stand 1, where it fills the space of the removed set of rollers consisting of support and work rolls.
  • the intermediate roller rails 8 of equal height in the strip rolling stand 1 and the guide rails 5 in the roll changing carriage 2 brought into an aligned position. In this position, the expansion crossbeam 3 from the roller changing device 2 via the guide 5 and the
  • Intermediate roller rails 8 are automatically moved into the strip mill stand 1. Subsequent lowering of the intermediate roller rails 8 causes the removal cross member 3 to be lowered onto the chocks 9 of the lower support roller 10 and parked there. This process is shown in the drawing figure 3. Pins 11 on the underside of the extension crossbeam 3 engage in bores 12 on the chock 9 and stabilize the extension crossbeam 3.
  • the roller change carriage 2, which is no longer required, is moved aside by moving it to the side so that the window of the belt roll stand 1 is free for the support roller change.
  • the upper support roller 13 is hydraulically set down on the expansion crossbeam 3 and is likewise secured by pins 15 engaging in bores 14 of the chocks 16.
  • the entire set of backup rollers can now in a known manner on the lower extension rails 17 (Fig.1) from the Belt mill 1 is extended and changed manually using a crane (not shown).
  • the roll change carriage 2 which has meanwhile been shifted into position, grips the roll neck 6 on the removal crossbar 3 with its roll change device 7 and pulls it on the intermediate roll rails 8 and via the aligned guide rails 5 out of the strip rolling stand 1 into the roll change carriage 2.
  • the new set of rolls consisting of intermediate and work rolls, which is in the preparation position on the side next to the expansion cross member 3, is brought into a position in the center of the strip rolling stand 1, from which the roll set can be moved into the strip rolling stand 1.
  • This process is conventional and therefore need not be described further here.
  • the strip mill stand 1 is ready for use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Intermediate Stations On Conveyors (AREA)

Abstract

L'invention concerne un dispositif et un procédé de changement automatique des jeux de cylindres, constitués des cylindres de travail, des cylindres d'appui et des cylindres intermédiaires, d'un laminoir à feuillards équipé d'au moins une cage de laminoir, à l'aide d'un chariot de changement de cylindres qui se déplace perpendiculairement à la cage de laminoir (1), et d'une traverse de démontage permettant le démontage du jeu de cylindres d'appui (10, 13). Pour réduire le temps de remplacement (2) et automatiser le changement des cylindres, la traverse de démontage (3) est posée sur le chariot de changement de cylindres et pourvue de roues (4) qui permettent, dans les opérations selon l'invention, de retirer la traverse de démontage du chariot sur des rails de guidage (5) parallèles aux cylindres (10, 13) et de l'introduire dans la cage de laminoir sur les rails (8) de cylindres intermédiaires puis de l'extraire de la cage de laminoir en même temps que le jeu de cylindres d'appui.
EP02754457A 2001-08-06 2002-07-26 Dispositif et procede de changement automatique des cylindres de travail, des cylindres d'appui et des cylindres intermediaires d'un laminoir a feuillards equipe d'au moins une cage de laminoir Expired - Lifetime EP1414597B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10138589 2001-08-06
DE10138589A DE10138589A1 (de) 2001-08-06 2001-08-06 Vorrichtung und Arbeitsverfahren zum automatischen Wechseln der Arbeits, Stütz- und Zwischenwalzen eines ein- oder mehrgerüstigen Bandwalzwerkes
PCT/DE2002/002808 WO2003015948A1 (fr) 2001-08-06 2002-07-26 Dispositif et procede de changement automatique des cylindres de travail, des cylindres d'appui et des cylindres intermediaires d'un laminoir a feuillards equipe d'au moins une cage de laminoir

Publications (2)

Publication Number Publication Date
EP1414597A1 true EP1414597A1 (fr) 2004-05-06
EP1414597B1 EP1414597B1 (fr) 2007-01-10

Family

ID=7694580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02754457A Expired - Lifetime EP1414597B1 (fr) 2001-08-06 2002-07-26 Dispositif et procede de changement automatique des cylindres de travail, des cylindres d'appui et des cylindres intermediaires d'un laminoir a feuillards equipe d'au moins une cage de laminoir

Country Status (7)

Country Link
US (1) US7381301B2 (fr)
EP (1) EP1414597B1 (fr)
JP (1) JP4414756B2 (fr)
CN (1) CN1247332C (fr)
DE (2) DE10138589A1 (fr)
RU (1) RU2297291C2 (fr)
WO (1) WO2003015948A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2893867B1 (fr) * 2005-11-25 2008-02-15 Vai Clecim Soc Par Actions Sim Procede de gestion des cylindres dans un atelier de laminage et installation pour sa mise en oeuvre
WO2009153415A1 (fr) * 2008-06-19 2009-12-23 Siemens Vai Metals Technologies Sas Méthode de changement de cylindre dans un laminoir pour une bande d'acier en défilement continu
DE102010033753A1 (de) * 2010-06-04 2011-12-08 Sms Siemag Ag Einrichtung zum Reinigen und Trocknen von Walzgerüsten
CN102564688A (zh) * 2011-12-28 2012-07-11 福建省计量科学研究院 用于叠加式力标准机的标准传感器更换装置
CN103736738A (zh) * 2014-01-22 2014-04-23 江苏亨特宏业重工有限公司 冷轧机工作辊换辊装置
CN103962378B (zh) * 2014-04-22 2016-03-02 中冶南方工程技术有限公司 一种上中间辊单独换辊装置
CN104384315B (zh) * 2014-10-21 2017-02-22 江苏亚威机床股份有限公司 一种快速高精度换辊装置
DE102015218360A1 (de) 2015-09-24 2017-03-30 Sms Group Gmbh Walzgerüst und Verfahren zum Wechseln von Arbeitswalzen
CN105904399B (zh) * 2016-05-03 2018-04-17 首钢京唐钢铁联合有限责任公司 一种提高精轧机弯辊缸块更换速度的方法及装置
CN105880291B (zh) * 2016-06-12 2017-08-01 张家港浦项不锈钢有限公司 板坯粗轧机停机时上、下工作辊打开的方法
CN108421829B (zh) * 2018-02-27 2019-07-19 首钢京唐钢铁联合有限责任公司 一种提高下支撑辊水平精度的方法
CN113646100B (zh) * 2019-04-04 2023-06-27 日本森吉米尔公司 多辊轧机及多辊轧机中的分割式支承轴承组装轴的更换方法
CN110227717A (zh) * 2019-07-03 2019-09-13 中国重型机械研究院股份公司 一种换辊装置及方法
CN110883100A (zh) * 2019-11-30 2020-03-17 广东含元工业技术有限公司 一种六辊轧机的换辊方法
CN116099878A (zh) * 2023-03-17 2023-05-12 张家港扬子江冷轧板有限公司 一种支承辊换辊装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1273016A (en) * 1968-10-02 1972-05-03 Hitachi Ltd Roll changing apparatus for a four-high rolling mill
JPS5536063A (en) * 1978-09-08 1980-03-13 Hitachi Ltd Roll replacement device of rolling mill
JPS5684108A (en) 1979-12-14 1981-07-09 Hitachi Ltd Rearranging apparatus for roll of multistage rolling mill
JPS6056564B2 (ja) * 1980-06-18 1985-12-11 株式会社日立製作所 圧延機のロ−ル組替装置
JPS63174708A (ja) 1987-01-13 1988-07-19 Ishikawajima Harima Heavy Ind Co Ltd 控ロ−ル組替方法及び装置
JPH02187208A (ja) 1989-01-11 1990-07-23 Hitachi Ltd 多段圧延機におけるロール組替装置
DE3930125C2 (de) 1989-09-09 1997-02-20 Schloemann Siemag Ag Umrüstbares Walzgerüst
DE19815029B4 (de) 1998-04-03 2006-07-27 Sms Demag Ag Walzenwechselverfahren für ein Walzgerüst

Non-Patent Citations (1)

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Title
See references of WO03015948A1 *

Also Published As

Publication number Publication date
RU2004106602A (ru) 2005-06-10
DE50209241D1 (de) 2007-02-22
JP4414756B2 (ja) 2010-02-10
WO2003015948A1 (fr) 2003-02-27
JP2004538147A (ja) 2004-12-24
EP1414597B1 (fr) 2007-01-10
CN1247332C (zh) 2006-03-29
US20040231389A1 (en) 2004-11-25
US7381301B2 (en) 2008-06-03
DE10138589A1 (de) 2003-02-20
RU2297291C2 (ru) 2007-04-20
CN1538885A (zh) 2004-10-20

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